CVE-2026-56434: NGINX ngx_http_ssi_module vulnerability

Overview

Severity

Medium (CVSS 6.5)

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

Exploit Status

Not Exploited

Patch Tuesday

2026-Jul

Released

2026-07-19

Last Updated

2026-07-22

EPSS Score

0.45% (percentile: 37.6%)

Affected Products (1)

Other

• 21527-17084

Revision History

• 2026-07-19: Information published.
• 2026-07-20: Information published.
• 2026-07-22: Information published.